Signature of a cosmic string wake at z=3

Camargo Neves Da Cunha, Disrael
(2020) Journal of Cosmology and Astroparticle Physics — Vol. 2020, n° 06, p. 16 (2020)

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  • Camargo Neves Da Cunha, DisraelUCLouvain
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Abstract
In this paper, we describe the results of N-body simulation runs, which include a cosmic string wake of tension Gμ= 4 × 10-8 on top of the usual Λ CDM fluctuations. To obtain a higher resolution of the wake in the simulations compared to previous work, we insert the effects of the string wake at a lower redshift and perform the simulations in a smaller volume. A curvelet analysis of the wake and no-wake maps is applied, indicating that the presence of a wake can be extracted at a three-sigma confidence level from maps of the two-dimensional dark matter projection down to a redshift of z=3.
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Camargo Neves Da Cunha, D. (2020). Signature of a cosmic string wake at z=3. Journal of Cosmology and Astroparticle Physics, 2020(06), 16. https://doi.org/10.1088/1475-7516/2020/06/016 (Original work published 2020)